American Beaver Negative Footprint

Australopithecus africanus., designated STS 5, was discovered by Robert Broom and John T. Robinson in Sterkfontein, Transvaal, South Africa in 1947. Although originally considered female, study of the roots of the canine teeth has cast serious doubt on it's gender, leading most to believe it is,in fact, from a sub-adult male instead. 

*Skull Length:  19 cm (7.5 in)

Austrolopithecus afarensis., Lucy is, quite possibly, the most well-known fossil hominid. Discovered by Donald Johanson and Tom Gray in 1974 at Hadar, Ethiopia, Lucy is dated at 3.2 million years old. This specimen, a 40% complete skeleton of an adult female, gave sufficient evidence that A. afarensis was a bipedal species that walked upright. Lucy, scientifically known as AL 288-1, was named after the Beatles song "Lucy in the Sky with Diamonds."

*Skull Lengh 7.2in.

KNM ER 1470 Skull - First discovered in Koobi Fora, Kenya is 1972, Homo rudolphensis has consistently been the subject for debate. Many anthropologists believe this specimen to belong to the Australopithecine genus while some favor Homo habilis as its species. There are many features used to distinguish this sole specimen (KNM ER 1470) from both of these groups, but a consensus has yet to be reached.

*Specifications: CLASS: Fossil Hominids ORDER: Fossil Hominids FAMILY: Fossil Hominidae Origin: Kenya

*Skull Lenght 7.3in.

KNM ER 1813 - This small, but very complete skull was found at Koobi Fora, Kenya, in 1973 by Kamoya Kimeu. It dates back to 1.9 MYA and is considered an early member of the Homo genus. It's minute brain capacity, however, leads many to place it within the Australopithecus group.

*Specifications: CLASS: Fossil Hominids ORDER: Fossil Hominids FAMILY: Fossil Hominidae Origin: Koobi Fora, Lake Turkana, Kenya 2.3 - 1.6 mya

*Skull Length: 19 cm (7.5 in)